High-speed flat hosiery frame



Feb. 24, 1931.

A. nlci-mlzj 7. area srssn' FLAT Rosina? FRAME Filed July 20, 1927 Patented Feb. 24, 1931 UNITED ARTHUR RICHTER, OF IBERBISDORF, GERMANY HIGH-SPEED FLAT I-IOSIERY FRAME Application filed July 20, 1927, Serial No. 207,216, and in Germany May 2, 1927.

This invention has forits object to make the flat hosiery-frame for instance the cot- I ton-frame, run much more rapidly, a good fabric being nevertheless produced. It has 5 already been proposed to increase the working speed of the hosiery-frame, but theseattempts were limited as the formation of the loops requires a certain time up to the knocking over. It has been proposed to shorten the needle, but herefrom resulted difficulties at the pressing. According to the present invention the same time as usual is allowed for.

the formation of the loop and the needle is of the usual length. The higher working speed of the machine is obtained by making the needle execute a shorter movement, for instance half the travel as hitherto, however, in order that a good loop be formed up to the knocking over, the machine head with the knock-over comb move towards the needle path, i. e. ascend while the needle is descendlng.

Suppose the needle descends actually on the cotton-frame mm, in this case it will 25 ascend also 25 mm. so that the entire travel amounts to 50 mm. According to the present invention the travel of the needles will be only 25 mm., as the mechanism for forming the loops comes to meet the needle half way. The machine can consequently run at double the speed of the ordinary machine, and all the working operations, as sinking of the loops, dividing, pressing and knocking over, are carried out in accurately the same time as with the normal working method, so that the fabric is of the same good quality as when the machine is working at slower speed.

An embodiment of the invention is illustrated by way of example, in the accompanying drawing in which Fig. 1 shows a cotton-frame-head in sec tional side elevation, the needle being in the hi best position,

ig. 2 is a similar view, showing the needle lowered, the machine head with ress and knock over comb having aseende accordingly.

The frame-head 2, in which the sinkers 3 move and on .vhich also the presser-bar 4 and the knock over comb 5 are mounted, is, for

instance in the cotton-frame, arranged so that it can move up and down, for instance execute half the travelwhich the needle executes in the normal cotton frame. This movement is controlled by a cam 6 mounted first half its travel (step 10 on the eccentric 6) i. e. up to the pressing, whereupon the second step of the movement is carried out up to the knocking over (step 11 on the eccentric 6). A correct working of the frame is thus ensured. The sinkers are guided in a guide box 12 shiftable in the axial direction of the needles.

Iclaim 1. A fiat hosiery frame, comprising a needle bed with needles, sinkers co-operating with the needles to form loops, and means for moving said sinkers not only transversely to the axial direction of said needles but also together with said needle bed in the axial direction of the-needles. 1

'2. A flat hosiery frame as specified in claim 1, comprising in combination with the sinkers, a cam shaft, a cam mounted on said camshaft for shifting said sinkers in axial direction of the needles.

3. A fiat hosiery frame as specified in claim 1, comprising in combination with the sinkers, a cam shaft, a cam mounted on said cam shaft for shifting said sinkers in severalsteps, first up to the beard pressing position iand then up to the knocking over position. i

In testimony whereof I afiix my signature. ARTHUR RICHTER. 

